Image
Nano Banana 2.1 vs. GPT Image 2.5 on the same brief
Choose a common output size and test wide aspect ratios separately.
Match the shared settings
Use the same product reference, prompt, resolution, and aspect ratio. Check text and geometry before comparing latency or cost.
Test extra-wide requests on their own
Confirm support for the required aspect ratio and compare the quoted settings. Keep cropped or upscaled results separate from native outputs.
Test prompt
Center the reference product on a warm beige studio surface. Change the background and tabletop only. Preserve the packaging proportions, text, and edges.